Almost every rock band from the 70's through 1993ish had the same desease. Their first couple albums rocked the house down and they became very popular and were stricken with the desease. By the third or fouth album the keyboards become more prominent and they score a huge power ballad hit. Unfortunately their core fan base often times did not relate to the soft stuff and it is game over. Examples: Queen in the US after the game album Foreigner Styx Journey, etc Once you stop being a current viable band (a couple dud albums or lose a key member) its classic rock radio time.